Use of group 4 bis (sulfonamido) complexes in the intramolecular hydroamination of alkynes and allenes

L Ackermann, RG Bergman, RN Loy

文献索引：Ackermann, Lutz; Bergman, Robert G.; Loy, Rebecca N. Journal of the American Chemical Society, 2003 , vol. 125, # 39 p. 11956 - 11963

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被引用次数: 191

摘要

Titanium tetrakis (amido) complexes catalyze the intramolecular hydroamination of alkynes and allenes more efficiently than Cp-based species. We report here that electron- withdrawing and sterically demanding bis (sulfonamido) ligands lead to enhanced catalytic activity. Zirconium analogues have also been prepared, and the tosyl-substituted complex 20 has been structurally characterized. As in the titanium series, bis (sulfonamido) ...